Home / 20,279.71-30,419.54-14,768.11

Finding the Fourth Proportional to 20,279.71, 30,419.54 and 14,768.11

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Solution

The fourth proportional to 20,279.71, 30,419.54 and 14,768.11 is: 22,152.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,279.71 : 30,419.54 = 14,768.11 : x
  2. Step 2: Convert to fraction form
    20,279.71/30,419.54 = 14,768.11/x
  3. Step 3: Cross multiply
    20,279.71x = 30,419.54 × 14,768.11
  4. Step 4: Simplify right side
    20,279.71x = 449,239,112.87
  5. Step 5: Solve for x
    x = 449,239,112.87/20,279.71
  6. Step 6: Final answer
    x = 22,152.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.